What led to the insurrection between the Cheyenne and the U.S. Army?

The Cheyenne and Arapaho tribes came into conflict with the US government in 1864. This was sparked by the discovery of gold in the Colorado Territory in 1858. It caused lots of prospectors to trespass Cheyenne and Arapaho land.

Explanation:

This doctrine led directly to the Vietnam war. ... The doctrine of containment argued that all-out war should be avoided, but the US should pledge itself to stopping any new communist governments, or preventing any existing communist governments from expanding

Explanation:

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